Apparatus, method and medium displaying stereo image

Abstract

An apparatus, method, and medium displaying a stereo image compensates for errors between a left image and a right image to reduce eye fatigue experienced by a user. The apparatus includes a feature-point extractor to extract feature points of graphics objects included in a left image and a right image, of a stereo image, a representative-vector determiner to determine a representative vector among vectors between a predetermined point and the feature points, an error-correction unit to correct at least one of a vertical error and a rotation error between the left image and the right image using a difference between the representative vector determined in the left image and the representative vector determined in the right image, and a display unit to display the left image and the right image for which at least one of the vertical error and the rotation error has been corrected.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority from Korean Patent Application No. 10-2006-0014766 filed on Feb. 15, 2006 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety.BACKGROUND[0002]1. Field[0003]One or more embodiments of the present invention relate generally to an apparatus, method and medium for displaying a stereo image, and more particularly to an apparatus, method and medium for displaying a stereo image, in which predetermined areas are set to a left image and a right image of a stereo image, and a vertical error and a rotation error of the left image and the right image are compensated for using a vector difference of polygons displayed in each area.[0004]2. Description of the Related Art[0005]Digital TV has emerged to fulfill consumer demand for improved picture quality. A digital TV provides improved picture quality, and uses a different screen aspect ratio, as compar...

AI Technical Summary

Benefits of technology

[0022]Accordingly, one or more embodiments of the present invention has been made to solve the above-mentioned problems, with an aspect being to set predetermined areas in a left image and a right image, matching up a stereo image, and compensate for a vertical error and a rotation error of the left image and the right image using a vector difference of polygons displayed in each area.

Problems solved by technology

Conventional 3D stereo image (hereinafter, referred to as stereo image) broadcasting systems have been developed in Japan, Europe, the U.S., and other countries, but the commercialization of these systems has been delayed mainly due to problems such as visual fatigue and the inconvenience to users of wearing stereo glasses.

Visual fatigue occurring from stereo image systems is typically caused by accommodation-convergence breakdown and crosstalk.

However, when a user views a stereo image through a conventional stereo image system, a accommodation-convergence breakdown occurs due to the large disparity between the point at which the eyes of the user are focused, and the point at which the eyes of the user are converged.

Consequently, a dual image created here causes eye fatigue.

That is, crosstalk occurs due to the incompletion of image switching in stereo glasses or the afterglow effect of a light-emitting device of a monitor.

When the display plane of a stereo image system is not perpendicular to the visual angle of a user, an image incident on both eyes of a user may be perceived as distorted.

Additionally, a vertical error or a rotation error of the left image and / or the right image may occur, also causing a user's eyes to become fatigued.

However, the technique discussed in Korean Unexamined Patent No. 2005-0102156 only proposes generating a multi-view stereo image through horizontal shift of the left image and the right image, but does not avoid vertical and rotation errors.

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